Spring Arbor Township is located Jackson County in the southern portion of Michigan. It is just west of the city of Jackson. As of the 2000 census, the township had a total population of 7,577.

For information about the community, please visit the Spring Arbor, Michigan article.

Geography

According to the United States Census Bureau, the township has a total area of 92.7 km² (35.8 mi²). 91.7 km² (35.4 mi²) of it is land and 1.0 km² (0.4 mi²) of it is water. The total area is 1.09% water.

The township encompases all thirty-six sections of the T3S R2W survey township.

Demographics

As of the census² of 2000, there are 7,577 people, 2,570 households, and 1,930 families residing in the township. The population density is 82.7/km² (214.1/mi²). There are 2,694 housing units at an average density of 29.4/km² (76.1/mi²). The racial makeup of the township is 97.04% White, 0.81% African American, 0.40% Native American, 0.50% Asian, 0.13% Pacific Islander, 0.36% from other races, and 0.77% from two or more races. 1.72% of the population are Hispanic or Latino of any race.

There are 2,570 households out of which 36.7% have children under the age of 18 living with them, 61.7% are married couples living together, 9.7% have a female householder with no husband present, and 24.9% are non-families. 21.1% of all households are made up of individuals and 9.7% have someone living alone who is 65 years of age or older. The average household size is 2.64 and the average family size is 3.05.

In the township the population is spread out with 25.3% under the age of 18, 14.3% from 18 to 24, 25.2% from 25 to 44, 21.8% from 45 to 64, and 13.4% who are 65 years of age or older. The median age is 35 years. For every 100 females there are 91.6 males. For every 100 females age 18 and over, there are 85.9 males.

The median income for a household in the township is $51,770, and the median income for a family is $59,407. Males have a median income of $42,245 versus $27,729 for females. The per capita income for the township is $19,622. 7.9% of the population and 4.5% of families are below the poverty line. Out of the total population, 8.9% of those under the age of 18 and 5.1% of those 65 and older are living below the poverty line.